.banner {
    width: 100%;
}

.banner img {
    width: 100%;
}

.home {
    max-width: 550px;
    margin: 0 auto;
}
.loading{
    width: 100vw;
    height: 100vh;
    position: fixed;
    top: 0;
    left: 0;
    background: url("./timg.gif") no-repeat center/cover;
    background-size: 300px 300px;
    background-color: rgba(0,0,0,0.5);
    z-index: 9999;
    display: none;
}